After all when i try to publish the stream,no video is displayed in vlc in responce of publish...and error which says streaming/transcoding failed:vlc couldnot open the encoder occurs..How to solve this regarding publish the stream from vlc player.

I used this same camera logitech and successfully publish stream from Flash Media Live encoder. In vlc also, i can capture video using direct show.But why can't i publish the stream to wowza from vlc. There is no problem in camera and all..Couldn't publish video from vlc..what to do?

The location of the .sdp file that VLC will generate is controlled by the following parameter: sdp=file://%WMSCONFIG_HOME%/content/vlc.sdp

It may get deleted when VLC stops. Or it may not get created if the user that is running VLC does not have permissions to write to the specified directory. Ensure that the user can write to the specified directory, or change the location to a directory the user can write to. Then, while VLC is running, copy .sdp file to the Wowza content dir.

Regarding your http/rtsp question, I kindly ask that you put yourself in the shoes of the support technician who would like to help you. How would the support technician be able to solve the problem with only the information, "X doesn't work"? My suggestion is that when you ask for help, try to provide the information necessary to identify the problem. This means:

1. The general idea of what you are trying to do.

2. The exact steps you are taking, such as the stream URI you are playing, which player, etc..

3. What tutorial you are following.

4. What error messages you are seeing.

5. What troubleshooting steps you have taken.

If you can do these things, it will save you time waiting for back-and-forth responses, and get your problem solved as fast as possible.